Polypropylene flame-retardant air pipe convenient to install

Abstract

The utility model discloses a polypropylene flame-retardant air pipe convenient to install, particularly relates to the technical field of flame-retardant air pipes, and comprises a polypropylene air pipe, a flame-retardant layer is arranged in the polypropylene air pipe, a heat insulation layer is arranged in the flame-retardant layer, and an installation mechanism for installing the polypropylene air pipe is arranged outside the polypropylene air pipe. An assembling mechanism facilitating assembling of the multiple polypropylene air pipes is arranged on one side of each polypropylene air pipe and comprises two mounting frames arranged outside the polypropylene air pipes, supporting plates are arranged on the two sides of one mounting frame, and two inserting rods are fixedly arranged on the sides, close to each other, of the two supporting plates. The bottom end of the inserting rod penetrates through the flame-retardant layer and the heat insulation layer, and an inserting plate is arranged on one side of the polypropylene air pipe. By arranging the flame-retardant layer, the polypropylene air pipe can be prevented from burning, safety is improved, a plurality of polypropylene air pipes can be installed through the assembling mechanism, and practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of flame-retardant air duct technology, specifically to a polypropylene flame-retardant air duct that is easy to install. Background Technology

[0002] Air ducts are piping systems used for air transport and distribution. There are two types: composite air ducts and inorganic air ducts. They can be classified according to cross-sectional shape and material. According to cross-sectional shape, air ducts can be divided into circular air ducts, rectangular air ducts, flat oval air ducts, etc. Among them, circular air ducts have the lowest resistance but the largest height dimension, so rectangular air ducts are mainly used. According to material, air ducts can be divided into metal air ducts, composite air ducts, and polymer air ducts.

[0003] For example, Chinese patent application No. 202322582009.5 provides an easy-to-install duct, including a duct body with a connecting frame. A first connecting plate and a second connecting plate are connected to both ends of the duct body, respectively. A connecting seat is provided on one side of the first connecting plate, and a bidirectional screw is provided in the inner cavity of the connecting seat. One end of the bidirectional screw passes through the connecting seat and is connected to a rotating handle. A moving block is connected to the bidirectional screw, and an insert block is fixedly connected to one end of the moving block. A positioning rod is provided on the other side of the first connecting plate, and a positioning hole corresponding to the positioning rod is provided on the second connecting plate. A sealing gasket is provided between the first and second connecting plates. A partition is provided in the inner cavity of the connecting seat, and the partition is located in the middle of the bidirectional screw. By providing the first and second connecting plates, two duct bodies of the same specifications can be spliced ​​together during duct assembly, which is convenient, time-saving, and labor-saving.

[0004] However, the following problems still exist in this technical solution: the air duct in this technical solution does not have flame-retardant function. Once a fire occurs, it is very easy to promote the spread of the fire. This kind of air duct will burn rapidly at high temperature and may release toxic gases, which will cause great harm to the human body. Utility Model Content

[0005] The purpose of this invention is to provide an easy-to-install polypropylene flame-retardant air duct. By setting a flame-retardant layer, the polypropylene air duct can be prevented from burning, thus improving safety. Furthermore, the assembly mechanism allows for the installation of multiple polypropylene air ducts, improving practicality and addressing the aforementioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a polypropylene flame-retardant air duct that is easy to install, comprising a polypropylene air duct, wherein a flame-retardant layer is provided inside the polypropylene air duct, a heat insulation layer is provided inside the flame-retardant layer, an installation mechanism for installing the polypropylene air duct is provided outside the polypropylene air duct, and an assembly mechanism for facilitating the assembly of multiple polypropylene air ducts is provided on one side of the polypropylene air duct.

[0007] Preferably, the flame-retardant layer is made of fire-resistant cotton material and is used for flame retardancy.

[0008] Preferably, the insulation layer is made of rock wool material and is used for heat insulation.

[0009] Preferably, the assembly mechanism includes two mounting frames located outside the polypropylene duct. One of the mounting frames has support plates on both sides. Two plug-in rods are fixed on the side of the two support plates that are close to each other. The bottom end of the plug-in rods penetrates the flame-retardant layer and the heat insulation layer. A plug-in plate is provided on one side of the polypropylene duct. Two plug-in holes are opened on both sides of the plug-in plate. The plug-in rods are adapted to the plug-in holes. A spring is fixed on one side of the support plate. One end of the plug-in hole is fixedly connected to the mounting frame. A handle is fixed on one side of the support plate for assembling multiple polypropylene ducts.

[0010] Preferably, the installation mechanism includes a base plate at the bottom of the polypropylene duct, support frames on both sides of the bottom of the polypropylene duct, a limiting plate inserted inside the two support frames, and a first threaded hole on both the support frame and the base plate. The same first bolt is threaded inside the two connected first threaded holes for installing the polypropylene duct.

[0011] Preferably, the support frame has an insertion slot inside, into which an installation plate is inserted. The installation plate has multiple second threaded holes, and the support frame has a third threaded hole. The second and third threaded holes are connected by threads, and a second bolt is threaded to the top of the installation plate for installing the polypropylene duct.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] 1. The flame-retardant layer in this utility model is made of fireproof cotton material. The main component of fireproof cotton is polyester fiber. By adding flame retardant through a special process, a protective layer can be formed on the surface of the flame-retardant layer, which isolates oxygen and inhibits the chain combustion reaction. By setting the flame-retardant layer, the combustion of polypropylene duct can be avoided, thus improving safety.

[0014] 2. Pull the handle to pull the plug rod out from inside the mounting frame. Then, insert the plug plate on another polypropylene duct into the polypropylene duct. Release the handle. The spring, based on its elasticity, will drive the plug rod into the plug hole. The plug rod can be used to fix the polypropylene duct. The assembly mechanism can be used to install multiple polypropylene ducts, improving practicality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a front view of the present invention;

[0017] Figure 2 This is a rear view of the present invention;

[0018] Figure 3 This is a schematic diagram of the assembled structure of this utility model;

[0019] Figure 4 This is a bottom view of the present invention;

[0020] Figure 5 This is a schematic diagram of the installation mechanism of this utility model;

[0021] Figure 6 This is a schematic diagram of the assembly mechanism of this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the flame-retardant layer and the heat insulation layer of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Polypropylene duct; 2. Flame retardant layer; 3. Heat insulation layer;

[0025] 4 Assembly mechanism, 401 Mounting frame, 402 Support plate, 403 Plug rod, 404 Plug plate, 405 Plug hole, 406 Handle, 407 Spring;

[0026] 5. Installation mechanism, 501. Base plate, 502. Support frame, 503. Limiting plate, 504. First threaded hole, 505. First bolt, 506. Insertion groove, 507. Mounting plate, 508. Second threaded hole, 509. Third threaded hole, 510. Second bolt, 511. Third bolt. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] This utility model provides, for example Figure 1-7The diagram shows an easy-to-install polypropylene flame-retardant air duct, comprising a polypropylene air duct 1, an interior flame-retardant layer 2, an interior heat insulation layer 3, an installation mechanism 5 for installing the polypropylene air duct 1 on the outside, and an assembly mechanism 4 for facilitating the assembly of multiple polypropylene air ducts 1 on one side.

[0029] like Figure 7 As shown, the flame-retardant layer 2 is made of fireproof cotton material. The main component of the fireproof cotton in this utility model is polyester fiber. By adding flame retardant through a special process, a protective layer can be formed on the surface of the flame-retardant layer 2, which isolates oxygen and inhibits the chain combustion reaction. By setting the flame-retardant layer 2, the combustion of polypropylene duct 1 can be avoided, thus improving safety.

[0030] like Figure 7 As shown, the heat insulation layer 3 is made of rock wool. The rock wool in this invention is made by melting natural minerals such as basalt at high temperature. It has excellent heat insulation and noise reduction. By setting the heat insulation layer 3, the transported gas can be kept warm.

[0031] like Figure 6 As shown, the assembly mechanism 4 includes two mounting frames 401 located outside the polypropylene duct 1. Each mounting frame 401 has a support plate 402 on both sides. Two plug-in rods 403 are fixedly installed on the side of the two support plates 402 that are close to each other. The bottom end of the plug-in rods 403 penetrates the flame-retardant layer 2 and the heat insulation layer 3. A plug-in plate 404 is provided on one side of the polypropylene duct 1. Two plug-in holes 405 are opened on both sides of the plug-in plate 404. The plug-in rods 403 are adapted to the plug-in holes 405. A spring 407 is fixedly installed on one side of the support plate 402. One end of the plug-in hole 405 is fixedly connected to the mounting frame 401. A handle 406 is fixedly installed on one side of the support plate 402.

[0032] Pull the handle 406 to pull the plug rod 403 out from the mounting frame 401. Then, insert the plug plate 404 on another polypropylene duct 1 into the polypropylene duct 1. Release the handle 406. The spring 407, based on its elasticity, can drive the plug rod 403 into the plug hole 405. The plug rod 403 can be used to fix the polypropylene duct 1. Multiple polypropylene ducts 1 can be installed together through the assembly mechanism 4, improving practicality.

[0033] like Figure 5As shown, the installation mechanism 5 includes a base plate 501 at the bottom of the polypropylene duct 1, and support frames 502 are provided on both sides of the bottom of the polypropylene duct 1. The same limiting plate 503 is inserted into the two support frames 502. The support frames 502 and the base plate 501 are provided with first threaded holes 504. The same first bolt 505 is threaded into the two connected first threaded holes 504.

[0034] like Figure 5 As shown, the support frame 502 has an insertion slot 506 inside, and a mounting plate 507 is inserted into the insertion slot 506. The mounting plate 507 has multiple second threaded holes 508, and the support frame 502 has a third threaded hole 509. The second threaded holes 508 and the third threaded holes 509 are connected by threads, and a second bolt 510 is threaded into the connected second threaded holes 508 and third threaded holes 509. A third bolt 511 is threaded into the top of the mounting plate 507.

[0035] Pull the distance between the two support frames 502 according to the width of the polypropylene duct 1. The two support frames 502 slide along the limiting plate 503. Then rotate the first bolt 505 to the inside of the first threaded hole 504. The first bolt 505 can fix the support frame 502 to the bottom of the polypropylene duct 1. Pull the mounting plate 507 and adjust the distance between the mounting plate 507 and the support frame 502 to adjust the installation height of the polypropylene duct 1. Rotate the second bolt 510 to the inside of the second threaded hole 508 and the third threaded hole 509. The second bolt 510 can fix the support frame 502 and the mounting plate 507. The third bolt 511 can fix the utility model to the wall.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An easy-to-install polypropylene flame-retardant air duct, comprising a polypropylene air duct (1), characterized in that: The polypropylene duct (1) has a flame-retardant layer (2) inside, a heat insulation layer (3) inside the flame-retardant layer (2), an installation mechanism (5) for installing the polypropylene duct (1) on the outside, and an assembly mechanism (4) for facilitating the assembly of multiple polypropylene ducts (1) on one side. The flame-retardant layer (2) is made of fireproof cotton material, and the heat insulation layer (3) is made of rock wool material.

2. The easy-to-install polypropylene flame-retardant air duct according to claim 1, characterized in that: The assembly mechanism (4) includes two mounting frames (401) located outside the polypropylene duct (1). One of the mounting frames (401) has a support plate (402) on both sides. Two plug rods (403) are fixed on the side of the two support plates (402) that are close to each other. The bottom end of the plug rod (403) penetrates the flame retardant layer (2) and the heat insulation layer (3). A plug plate (404) is provided on one side of the polypropylene duct (1). Two plug holes (405) are opened on both sides of the plug plate (404). The plug rod (403) is adapted to the plug hole (405).

3. The easy-to-install polypropylene flame-retardant air duct according to claim 2, characterized in that: A spring (407) is fixedly provided on one side of the support plate (402), one end of the insertion hole (405) is fixedly connected to the mounting frame (401), and a handle (406) is fixedly provided on one side of the support plate (402).

4. The easy-to-install polypropylene flame-retardant air duct according to claim 1, characterized in that: The installation mechanism (5) includes a base plate (501) at the bottom of the polypropylene duct (1). Support frames (502) are provided on both sides of the bottom of the polypropylene duct (1). The same limiting plate (503) is inserted into the two support frames (502). The support frames (502) and the base plate (501) are provided with first threaded holes (504). The two connected first threaded holes (504) are threaded with the same first bolt (505).

5. The easy-to-install polypropylene flame-retardant air duct according to claim 4, characterized in that: The support frame (502) has an insertion slot (506) inside, and an installation plate (507) is inserted into the insertion slot (506). The installation plate (507) has multiple second threaded holes (508), and the support frame (502) has a third threaded hole (509). The second threaded hole (508) and the third threaded hole (509) are connected by threads, and a second bolt (510) is threaded inside them.

6. The easy-to-install polypropylene flame-retardant air duct according to claim 5, characterized in that: The top of the mounting plate (507) is threaded with a third bolt (511).

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